Delay in moving house - worth switching mortgage?

[thehappyprince]

We are in the process of moving house and have a mortgage agreement with bank x (the best 5yr fixed deal at the time). Unfortunately we've had 2 sale fall through and rates seem to be getting more competitive. Do you think it's worth changing - I suppose we run the risk of being turned down, will have to pay 2 valuations/arrangement fees but this would balance out within a couple of years with reduced monthly payments. Not sure I can face the hassle but feel I should!

If the sale takes more than say 6 months to go through then chances are you would be credit checked again. So that would not make a difference. It really comes down to the cost as you say of another valuation.
Do be careful though as if you have two applications on the same property it may be viewed as fraud by the ban who may thin you are trying to raise two mortgages on the same property.